When to groom? (IMAGE) Institute of Science and Technology Austria Caption Ants react to the perceived germs on the nestmates and to the social feedback that they receive on their own infectiousness from the colony. Credit © Sina Metzler & Roland Ferrigato/ISTA Usage Restrictions No Restriction for Editorial Use about the Research. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.